As per usual, iOS users (particularly the iPhone 5) are used to getting Apple Maps throw up a set of directions to them, which from time to time, if you don’t live under a rock, are very wrong. So, with the recent release of Google Maps for iOS, probably one of your first questions about the app is: can I use it with Siri? Well, yes you can.
As JailbreakNation shows in this video, adding the phrase “via transit” to the end of your Siri voice command forces the software to use Google Maps instead of iOS’s native cartographic catastrophe So ,instead of saying “take me to the nearest [INSERT DESTINATION]”, just say say “take me to the nearest [INSERT DESTINATION] via transit”. Done.